Example 14

White solid. 1H NMR (CD3OD): 5.10 (d, J=7.3 Hz, 1H, H-24), 4.50 (d, J=7.3 Hz, 1H, H-1), 3.84 (dd, J=12.4, 1.4 Hz, 1H, H-5′-1), 3.79 (brs, 1H, H-4′), 3.71 (td, J=10.6, 5.5 Hz, 1H, H-12), 3.53 (dd, J=12.4, 1.4 Hz, 1H, H-5′-2), 3.51 (dd, J=6.4, 3.2 Hz, 1H, H-3′), 3.45 (dd, J=9.1, 7.3 Hz, 1H, H-2′), 3.14 (dd, J=11.5, 4.6 Hz, 1H, H-3), 1.67 (s, 3H), 1.62 (s, 3H), 1.34 (s, 3H), 1.01 (s, 3H), 0.96 (s, 3H), 0.92 (s, 3H), 0.91 (s, 3H), 0.78 (s, 3H).

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